(19)

(11)

EP 1 597 663 A2

(12)

(88) Date of publication A3: 16.12.2004 (43) Date of publication: 23.11.2005 Bulletin 2005/47 (21) Application number: 04714654.3 (22) Date of filing: 25.02.2004

(51) International Patent Classification (IPC)7: G06F 3/033 (86) International application number: PCT/US2004/005694 (87) International publication number: WO 2004/079559 (16.09.2004 Gazette 2004/38)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 28.02.2003 US 377493 (71) Applicant: ELO TOUCHSYSTEMS, INC. Menlo Park, CA 94025 (US)	(72) Inventor: KENT, Joel Fremont, CA 94537 (US) (74) Representative: Johnstone, Douglas Ian  Baron & Warren, 19 South End, Kensington London W8 5BU London W8 5BU (GB)